Charles Craddock, CBE, FRCP (UK), FRCPath, DPhil, from University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK, talks about the importance of identifying the biological basis for acute myeloid leukemia (AML) relapse in developing effective maintenance strategies. This video was recorded at the European Society for Blood and Marrow Transplantation (EBMT) 2019 Annual Meeting, held in Frankfurt, Germany.